Swift/BAT measurements of the cyclotron line energy decay in the accreting neutron star Hercules X-1: indication of an evolution of the magnetic field? - INSPIRE

DataBETA

Swift/BAT measurements of the cyclotron line energy decay in the accreting neutron star Hercules X-1: indication of an evolution of the magnetic field?

Apr 28, 2015

5 pages

Published in:

Astron.Astrophys. 578 (2015) A88

Published: Jun 11, 2015

e-Print:

1504.07501 [astro-ph.HE]

DOI:

10.1051/0004-6361/201526188

View in:

ADS Abstract Service

reference search12 citations

Citations per year

Abstract: (EDP Sciences)

Context. The magnetic field is a crucial ingredient of neutron stars. It governs the physics of accretion and of the resulting high-energy emission in accreting pulsars. Studies of the cyclotron resonant scattering features (CRSFs) seen as absorption lines in the X-ray spectra of the pulsars permit direct measurements of the field strength.

Note:

Accepted for publication in Astronomy&Astrophysics

accretion, accretion disks
stars: neutron
stars: magnetic field

References(22)

Figures(4)

Space Sci. \ Rev., 120, 143

S.D. Barthelmy
,
L.M. Barbier
,
J.R. Cummings

D. Bhattacharya
,
R.A.M.J. Wijers
,
J.W. Hartman
,
F. Verbunt

- Astron.Astrophys. 254 (1992) 198

X-ray pulsars: a review

- Mem.Soc.Ast.It. 83 (2012) 230
•
e-Print:
- 1206.3124

The Smooth Cyclotron Line in Her X-1 as Seen with $Nuclear Spectroscopic Telescope Array$

et al.

- Astrophys.J. 779 (2013) 69
•
e-Print:
- 1309.5361
•
DOI:
- 10.1088/0004-637X/779/1/69

The Swift Gamma-Ray Burst Mission

Swift Science

Collaboration

•

N. Gehrels
(
- NASA, Goddard
)

et al.

- Astrophys.J. 611 (2004) 1005-1020,
- Astrophys.J. 621 (2005) 558 (erratum)
•
e-Print:
- astro-ph/0405233
•
DOI:
- 10.1086/422091

P. Goldreich
,
A. Reisenegger

- Astrophys.J. 395 (1992) 250

Stability of the cyclotron resonance scattering feature in her x-1 with rxte

et al.

- Astrophys.J. 562 (2001) 499
•
e-Print:
- astro-ph/0112439
•
DOI:
- 10.1086/323487

Cyclotron line formation in a radiation-driven outflow

- Astrophys.J. 493 (1998) 154
•
e-Print:
- astro-ph/9707224
•
DOI:
- 10.1086/305124

INTEGRAL observations of Her X-1

et al.

- Astron.Astrophys. 482 (2008) 907
•
e-Print:
- 0802.1168
•
DOI:
- 10.1051/0004-6361:20078953

D. Klochkov
,
R. Staubert
,
A. Santangelo
,
R.E. Rothschild
,
C. Ferrigno

Pulse-amplitude-resolved spectroscopy of bright accreting pulsars: indication of two accretion regimes

- Astron.Astrophys. 532 (2011) A126
•
e-Print:
- 1107.2202
•
DOI:
- 10.1051/0004-6361/201116800

Astron. \ Let., 32, 804

D.K. Klochkov
,
N.I. Shakura
,
K.A. Postnov

The Swift/BAT Hard X-ray Transient Monitor

et al.

- Astrophys.J.Suppl. 209 (2013) 14
•
e-Print:
- 1309.0755
•
DOI:
- 10.1088/0067-0049/209/1/14

Burial of the polar magnetic field of an accreting neutron star. 1. Self - consistent analytic and numerical equilibria

Donald J.B. Payne
(
- Melbourne U.
)
,
A. Melatos
(
- Melbourne U.
)

- Mon.Not.Roy.Astron.Soc. 351 (2004) 569
•
e-Print:
- astro-ph/0403173
•
DOI:
- 10.1111/j.1365-2966.2004.07798.x

Variable neutron star free precession in Hercules X-1 from evolution of RXTE X-ray pulse profiles with phase of the 35-day cycle

et al.

- Mon.Not.Roy.Astron.Soc. 435 (2013) 1147
•
e-Print:
- 1307.6026
•
DOI:
- 10.1093/mnras/stt1363

Cyclotron line signatures of thermal and magnetic mountains from accreting neutron stars

- Mon.Not.Roy.Astron.Soc. 445 (2014) 3, 2710-2724
•
e-Print:
- 1409.3327
•
DOI:
- 10.1093/mnras/stu1825

A model for cyclotron resonance scattering features

et al.

- Astron.Astrophys. 472 (2007) 353
•
e-Print:
- 0707.2105
•
DOI:
- 10.1051/0004-6361:20077218

in proceedings of 10th INTEGRAL Workshop: "A Synergistic

R. Staubert

Hercules X-1 - another 'first': long-term decay of the cyclotron line energy

Rüdiger Staubert

- PoS Integral2014 (2014) 024
•
e-Print:
- 1412.8067
•
DOI:
- 10.22323/1.228.0024

Long-term change in the cyclotron line energy in Hercules X-1

et al.

- Astron.Astrophys. 572 (2014) A119
•
e-Print:
- 1410.3647
•
DOI:
- 10.1051/0004-6361/201424203

Discovery of a flux-related change of the cyclotron line energy in Her X-1

Rudiger Staubert
(
- Tubingen U., IAAT
)
,
N.I. Shakura
(
- Sternberg Astron. Inst.
)
,
K. Postnov
(
- Sternberg Astron. Inst.
)
,
J. Wilms
(
- Erlangen - Nurnberg U., Astron. Inst.
)
,
R.E. Rothschild
(
- San Diego, CASS
)

et al.

- Astron.Astrophys. 465 (2007) L25
•
e-Print:
- astro-ph/0702490
•
DOI:
- 10.1051/0004-6361:20077098

J. Trümper
,
W. Pietsch
,
C. Reppin

- Astrophys.J. 219 (1978) L105